Frame and mounting for heat exchange units



Jan. 12, 1932. E. H. sEl-:LERT

FRAME AND MOUNTING FOR HEAT EXCHANGE UNITS Filed March 19, 1930 2 Sheets-Sheet Jan. l2, 1932.

E. H. SEELERT v 1,840,417

FRAME AND MOUNTING FOR HEAT EXCHANGE UNITS Filed March 19, 1950 2 Sheets-Sheet 2 prf/mle,

Patented Jan. 12, 1932 UNITED STATES PATENT OFFICE EDWARD H. SEELERT, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR T MCQUAY RADIATOR CORPORATION OF MINNEAPOLIS, MINNESOTA, A CORPORATION OF DELAWARE FRAME AND MOUNTING FOR HEAT EXCHANGE UNITS Application filed March 19, 1930.

My present invention relates toa frame and mounting for a heat exchange unit.

It is well known that the radiator core of such a unit is relatively delicate being formed from thin metal and having a multiplicity of soldered seams and joints. On the other hand, the frame of such a unit includes relatively heavy cast metal parts.

In practice it has been found, due to the marked difference of coefficients of expansion and contraction between the radiator and its frame, a diiicult matter to mount the radiator in its frame in such a manner as to prevent undue strains thereon resulting from expansion, contraction and vibrations that open up the soldered seams and joints, bend, warp or otherwise damage the radiator.

This invention provides a simple and efficient yielding means for holding the radiator in the frame of a heat exchange unit in such a manner as to permit free movements thereof in respect to said frame to compensate for different co-efiicients of expansion and contraction between the radiator and frame, for absorbing vibrations transmitted from the frame to the radiator, for eliminating the assembly of metal against metal that woud tend to create vibrations and produce noises, and for improving the general construction of the heat exchange unit.

To the above end, generally stated, the inv-ention consists of the novel devices and combinations of devices hereinafter described and deined in the claims.

In the accompanying drawings, which illustrate the invention, like characters indil cate like parts throughout the several views.

Referring to the drawings:

Fig. 1 is a plan view of a heat exchange unit having the invention embodied therein, some parts being broken away;

Fig. 2 is a front elevation ofthe same;

Fig. 3 is a view partlv in side .elevation and partly in vertical section taken' on the line 3-8 of Fig. 1; and

Fig. 4 is a view in section taken on the line 4-.4 of Fig. 3, with the intermediate portion of the unit broken away.

The frame of the heat exchange unit includes upper and lower cast members 5 each Serial N0. 436,991.

A by screws and spring washers 8 to the frame members 5 and each of said members is further provided with an intermediate flange 9 that is parallel to its front bar 7. The frame further includes side plates 10 of substantially the same width as the members 5 that are rigidly but detachably secured thereto by screws and spring washers.

A cradle 11 for holding a radiator in the frame is formed by the recesses in the opposing sides of the frame members 5 within the side sections of the iianges 6, front bars 7 and intermediate flanges 9. The radiator carried by the cradle 11 includes up er and lower header tanks 12 connected by side plates 13, and a core 14 made up of a plurality of tubes having communication with said tanks and iins on the tubes. On the to of each header tank 12, at the center thereo is a hexagon boss 15 having a screw-threaded hole in which a steam, vapor or water pipe connection is secured.

The bosses 15 extend outward through notch-like openings 16 formed in the frame members 5 at the front thereof. Fillets 17, formed with the front bars 7, extend into the openings 16 in front of the bosses 15 and hold the same in the inner end portions of said openings. Said bosses 15 extend loosely through the openings 16 and hold the radiator spaced from the cradle 11 in all directions in a horizontal plane and with freedom for a limited movement in a vertical plane.

Interposed between each header tank 12 and the adjacent frame member 5 is a resilient packing material 18 of fibers or other suitable material. This packing material 18 extends substantially the full length of the header tanks 12, has central apertures through which the bosses 15 extend and hold said material positioned on said tanks. The tops of the header tanks 12 are substantially-v semi-cylindrical in cross-section and the packing material 18 extends transversely around sa-id tops between the header tanks 12 and the' retaining bars .7 at the fronts thereof and the flanges 9 at the backs thereof. This resilient packing material 18 yieldingly holds the radiator in its cradle 11 with freedom for :1 limited movement in the plane thereof and cushions the same transversely of said plane. By thus yieldingly holding the Jradiatorain its cradle 11 the same isfree to contract and expand in respect to the frame. The packing material 18 keeps the metallic parts of they by two or four rods anchored inho-les 2O in ber 428,061.

said member, as disclosed and broadly claimed in my application for United States Letters Patent filed Feb. 13, 1930, under Serial Num- This type of mounting for the frame leaves the pipe connections for the radiator free to move therewith in respect to said frame. On the back of the frame is a motor support 21 secured to the frame members 5 and having a cushioning cradle 22 in which an electric motor 23 is mounted, This motor 23 has a fan 24 on its shaft which works in a shroud 25 having an outturned flange 26 which overlaps the outer faces of the flanges 9 and is rigidly secured thereto. Non-metallic packings 27 are interposed between the flange 26 and the flanges 9 and between said flange and the back of the radiator. These packings 27 hold the shroud 25 and its flange out of contact with the flanges 9 and the ra-n diator thus eliminating noise and vibration.

In front ofthe radiator is a plurality of deflector blades 28 mounted in angle bar supports 29 secured to the frame members 5 by the screws and washers 8. By removing the retaining bars 7 the radiatorl may be readily removed from its cradle 11 and the bosses 15 from the openings 16 without disturbing any of the parts of the unit with the exception of the packing material 18.

What I claim is:

1. In a heat exchange unit, a cradle, a. core assembly mounted in the cradle, said assembly being a rigid and self-contained structure and including a core and upper and lower tanks having means for attaching intake and outlet pipes thereto, and yielding means holding the assembly out of contact with the cradle.

2. In a heat exchange unit, upper and lower cradle members, a core assembly mounted in said members, said assembly being a rigid and self-contained structure and -\there'with, upper and lower resilient members interposed between the cradle members and assembly which holds said assembly with freedom for a limited movement in the plane thereof, and a packing between one side of the assembly and cradle members.

4. In a heat exchange unit, upper and lower channel cradle members, a core assembly inounted in said members, said assembly being a rigid and self-contained structure and including a core and upper and lower tanks, said tanks having bosses extending into notch-like openings in the transverse portions of said members and positioning the assembly in the cradle members out of contact therewith, and resilient members interposed between the assembly and cradle members, the outer sides of the cradle members being displaceable and normally closing said openings.

5. The structure defined in claim 4 in which the displaceable sides of the cradle members have fillets for the openings outward of the bosses.

6l In a -heat exchange unit, upper and lower channel cradle members, a core assembly having bosses, said assembly being a rigid and self-contained structure and including a core and upper and lower tanks, said tanks extending into notch-like openings in the transverse portions of said members and positioning the assembly in the cradle members out of contact therewith, resilient members interposed between the assembly and cradle members, the outer sides of the cradle members being removable and normally closing said openings, fastening means detachably securing said displaceablesides to the cradle members, delector supports secured to the cradle members by said fastening means, and deflector blades mounted on said supports.

7. In a heat exchange unit, upper and lower frame members and side plates connecting the same, said members having inwardly projecting intermediate ilanges, a core assembly mounted in said members forward of their intermediate flanges, said assembly being a rigid and self-contained structure and including ay core and upper and lower tanks having means for attaching intake and outlet pipes thereto, resilient mem- 'bers interposed between the assembly and frame members, a fan shroud having an outturned flange overlapping the side faces of the intermediate anges and secured thereto, packings interposed between the iange of the fan shroud and the intermediate flanges and the assembly, an electric motor having a mounting carried by the frame members, and a fan on the shaft of said motor working in the shroud.

8. The structure defined in claim 7 further including retaining bars detachably secured to the frame members in front of the assembly.

9. The structure defined in claim 7 further including upper and lower bosses on the assembly extending into notch-like openings in the top and bottom frame members and positioning the assembly therein and out of contact therewith, and retaining bars detachably securing the frame members in front of the assembly.

10. The structure dened in claim 7 further including upper and lower bosses on the assembly extending into notch-like openings in the top and bottom frame members and positioning the assembly therein and out of Contact therewith, and .retaining bars detachably securing the frame members. in front of the assembly, said bars having fillets extending into said openings in front of the bosses.

In testimony whereof I affix my signature.

EDWARD H. SEELERT. 

